<template>
  <div class="login-container">
    <el-form class="card-box login-form"
             autoComplete="on"
             :model="loginForm"
             :rules="loginRules"
             ref="loginForm"
             status-icon
             label-position="left"
             label-width="0px">
      <h3 class="title">Login</h3>
      <el-form-item prop="usernameOrEmail">
        <span class="svg-container svg-container_login">
          <icon-svg icon-class="username"/>
        </span>
        <el-input type="text"
                  autoComplete="on"
                  v-model="loginForm.usernameOrEmail"
                  placeholder="please input username or email"
                  @keyup.enter.native="handleLogin"/>
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <icon-svg icon-class="password"/>
        </span>
        <el-input :type="passwordType"
                  autoComplete="on"
                  v-model="loginForm.password"
                  placeholder="please input password"
                  @keyup.enter.native="handleLogin"/>
        <span class="show-pwd" @click="showPwd">
          <icon-svg icon-class="eye"/>
        </span>
      </el-form-item>
      <el-form-item>
        <el-button type="primary"
                   style="width:100%;"
                   :loading="btnLoading"
                   @click.native.prevent="handleLogin">login
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { isValidateEmail } from '@/utils/validate'

export default {
  name: 'login',
  data() {
    const validateUsernameOrEmail = (rule, value, callback) => {
      if (value.length < 3) {
        callback(new Error('username must be 3 or more characters'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('password must be 6 or more characters'))
      } else {
        callback()
      }
    }
    return {
      loading: false,
      loginForm: {
        usernameOrEmail: 'admin',
        password: 'admin123'
      },
      loginRules: {
        usernameOrEmail: [{ required: true, trigger: 'blur', validator: validateUsernameOrEmail }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      passwordType: 'password',
      btnLoading: false
    }
  },
  methods: {
    showPwd() {
      this.passwordType = this.passwordType === 'password' ? '' : this.passwordType = 'password'
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          const user = {}
          if (isValidateEmail(this.loginForm.usernameOrEmail)) {
            user.email = this.loginForm.usernameOrEmail
          } else {
            user.username = this.loginForm.usernameOrEmail
          }
          user.password = this.loginForm.password
          this.loading = true
          this.$store.dispatch('Login', user).then(() => {
            this.loading = false
            this.$router.push({ path: '/user' })
          })
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
  @import "../../../src/styles/mixin.scss";

  $bg: #2d3a4b;
  $dark_gray: #889aa4;
  $light_gray: #eee;

  .login-container {
    @include relative;
    height: 100vh;
    overflow-y: hidden;
    background-color: $bg;
    input:-webkit-autofill {
      -webkit-box-shadow: 0 0 0 1000px #293444 inset !important;
      -webkit-text-fill-color: #fff !important;
    }
    input {
      background: transparent;
      border: 0;
      -webkit-appearance: none;
      border-radius: 0;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
    }
    .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;
    }
    .tips {
      font-size: 14px;
      color: #fff;
      margin-bottom: 10px;
    }
    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
      &_login {
        font-size: 20px;
      }
    }
    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0 auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
    .login-form {
      position: absolute;
      left: 0;
      right: 0;
      width: 400px;
      padding: 35px 35px 15px 35px;
      margin: 120px auto;
    }
    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
    }
  }
</style>
